Registering product - TOPER Tool

I purchased the product on simmarket. I can't register the product to use it. Everytime I go to enter the key and hit register the program crashes. I read the manual and it stated to keep doing it again. I have attempted it for about a day with no luck. Any suggestions?

Hi
I'm not having any success registering either - get an error message about 'unhandled exception......' all the time. Unsure whether not being registered makes any difference to the program performance??